CN1045725C - Method and apparatus for treatment of circulating cooling water in air-conditioning system - Google Patents

Method and apparatus for treatment of circulating cooling water in air-conditioning system Download PDF

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Publication number
CN1045725C
CN1045725C CN93108366A CN93108366A CN1045725C CN 1045725 C CN1045725 C CN 1045725C CN 93108366 A CN93108366 A CN 93108366A CN 93108366 A CN93108366 A CN 93108366A CN 1045725 C CN1045725 C CN 1045725C
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China
Prior art keywords
water
cooling water
carbon fiber
filter core
conditioning system
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CN93108366A
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CN1084423A (en
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陆耘
朱世平
符若文
卢泓泽
曾汉民
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Sun Yat Sen University
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Sun Yat Sen University
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  • Biological Treatment Of Waste Water (AREA)

Abstract

The present invention discloses a method for processing circulating cooling water in an air conditioning system and a device thereof. The method is formed by that function carbon fibre treating material is fixed in a circulating cooling water flow path, the water naturally passes through the treating material, and the adopted treating material fundamentally has the functions of corrosion prevention, scale prevention and growth suppression for microorganisms. The device is only composed of a filtering core and a casing and is arranged in an air conditioning system, and the device is simple and easy in use. The method and the device of the present invention, which are used for processing circulating cooling water in the air conditioning system, have the advantages of high efficiency, manpower saving, material resource saving, maintenance cost saving, cleanness keeping of the equipment and a pipeline, no new water quality pollution, etc., and can also prolong the service life and the maintenance period of the equipment.

Description

Air-conditioning system recirculated cooling water processing method and device
The present invention relates to a kind of method for treating water and device thereof, particularly air-conditioning system recirculated cooling water processing method and device thereof.
The air-conditioning system cooling water in the processing method use because: 1, dissolved oxygen concentration height, 2, contain all kinds of polluters in the air, 3, CO 2Remove, 4, the concentrating of solid matter in the water, 5, in the water suspension gather and the procreation of microorganism such as grows at reason, make water quality deterioration gradually, cause long dirt of burn into and microorganism to multiply in a large number and harm such as generation biological clay to refrigeration plant, thereby make heat exchanger effectiveness reduction, the refrigerating capacity of refrigeration plant descend, equipment corrosion, perforation, cause leakage, influenced the normal operation of refrigeration plant.
To the water treatment of air-conditioning system cooling water, at present chemical methods that adopt promptly in water circulation system, regularly quantitatively add the chemicals of different performance, in the hope of playing the effect that improves water quality, anticorrosion, antiscale, kill microorganisms more, as add can and Ca 2+, Mg 2+The chelating agent polyphosphoric acid salts of complexing etc. perhaps feed CO 2, reduce the pH value of cooling water, increase Ca 2+, Mg 2+Solubility, make Ca 2+, Mg 2+Be difficult for generating the inorganic salts precipitation, add dispersant such as polyacrylate etc., can hinder CaCO 3, MgCO 3The growth of crystal and normal the gathering make that sediment is difficult to form densification and firm dirt layer in the metal surface, more than can play anti-scaling action; Yu Shuizhong feeds chlorine or adds bactericide such as chlorine-containing compound, organic quaternary amine, all can prevent the procreation of microorganism; Anti-corrosion method has two kinds of anodic passivity and cathodic protections, and the former adds oxidant chromate, nitrite etc. in recirculated cooling water, generate corrosion resistant oxide-film at oxidation on metal surface, and the latter adds corrosion inhibiter such as Quadrafos.Because chemical method will add the effect that multiple medicine just can play anticorrosion, antiscale, inhibition growth of microorganism, the unavoidable chemical reaction that takes place between added various medicament, and chemical agent quantitatively interpolation regularly, grasp the improper deterioration that can accelerate water quality on the contrary, produce opposite effect; Simultaneously, the Cr in the medicine that is added 6+, NO 2-Deng the pollution that can bring water quality; therefore, chemical method is difficult in the water quality of fundamentally improving cooling water, and refrigeration plant still has contaminating microorganisms to a certain degree to generate and corrosion phenomenon; operation needs after a period of time to shut down and takes out stains etc., could guarantee that cooling system continues normally to move.
The purpose of this invention is to provide a kind of processing method and device thereof of air-conditioning system recirculated cooling water, fundamentally improve water quality, long dirt of burn into and microbial growth in the anti-effectively locking system are guaranteed the long-term normal operation of refrigeration system.
Method of the present invention is that the processing material is fixed in the air-conditioning system recirculated cooling water flow process, allows the cooling water spontaneous current cross the processing material, and used processing material is the function carbon fiber.
The consumption of processing material is followed loop systems and is decided, and for the open type cooling tower, when quantity of circulating water is T (ton/hour), handles consumption A (kilogram)=(0.04~0.07) T+0.5 of material; For the chilled water circulatory system, when the chilled water total amount was T (ton), the consumption of handling material was A (kilogram)=(1/3~1/2) T.
For ease of being fixed in the cooling water flow path handling material, the present invention has designed a kind of special processor, and this device constitutes by crossing filter core and shell, crosses filter core and comprises core retainer plate and handle material, wherein core retainer plate is that the material of porous is made, and the processing material of dress is the function carbon fiber in the core retainer plate; Shell comprises housing and water inlet, delivery port.
Core retainer plate also can be separated into several portions, handles material and is distributed in equably in the each several part, is subjected to water impact and produces phenomenon pockety to avoid handling material.
Can add a filter between water inlet and mistake filter core, to exclude dust and floating material, the obstruction cooling water that core retainer plate caused that can avoid dust and floating material to be deposited on filter core like this passed through the phenomenon that filter core influences treatment effect smoothly.Filter can regularly split out and clean or change.
Treating apparatus of the present invention is installed in the air-conditioning system recirculated cooling water flow process, and recirculated cooling water, flows out through delivery port by crossing filter core from the water inlet inflow device, enters air-conditioning system again and circulates next time.
Function carbon fiber that method of the present invention adopted is handled material, is to be raw material with the natural organic fiber, gives carbonization and reaction kinetic and the new function material of heat-resisting, the acid and alkali-resistance that makes.Experiment shows that it has the electromotive force that reduces water, consumes oxygen in water, function such as calcium, magnesium ion in the adsorbed water.
Fig. 1 measures the potential curve figure that adds ZS-1 type function carbon fiber front and back in the running water with platinum electrode, be abscissa with equilibration time t (min) among the figure, electromotive force E (v) is an ordinate, 1. partly the electromotive force that records in the pure water in the curve, 2. part is to add the electromotive force that records behind the function carbon fiber, by the result as seen, and behind the adding ZS-1 type function carbon fiber, electromotive force obviously descends in the water, and this is that ZS-1 type function carbon fiber can major reason of corrosion-resistant.
The experimental result of function carbon fiber consumption oxygen in water is as shown in table 1, adds the concentration MnSO of function carbon fiber front and back oxygen in water 4Method is measured, and first hurdle is the experimental result in the pure water in the table, and second, second hurdle is the experimental result behind adding ZSA type, the ZS-1 type function carbon fiber in the pure water.The function carbon fiber can consume oxygen in water, in 60 minutes, makes the content of oxygen in water reduce by 16~22.5%, this is because the function carbon fiber has the strong adsorption capacity of root, it can be adsorbed onto fiber surface to the oxygen that is dissolved in the water, and reacts with it, generates CO 2And oxygen consumed, thereby reduce the metal erosion degree.
Table 1
System Volume of dissolution 0.1M Na 2S 20 3Consumption (ml) Dissolved oxygen content (mg/l)
Minute (min) Minute (min)
20 60 20 60
Water water+ZS-A water+ZS-1 20 20 20 2.50 2.50 2.10 2.06 1.94 2.05 400 400 336 330 310 328
Table 2 is that the function carbon fiber is to calcium in the water, the adsorbing experimental result of magnesium ion, calcium in the table, magnesium ion concentration is to record with atomic absorption spectrography (AAS), No. 1 test is running water, 2,3 and No. 4 tests are and are added with the function carbon fiber in the running water, the result shows, after adding the function carbon fiber in the running water, calcium, magnesium ion concentration descends, this is because the function carbon fiber has adsorbed the calcium in the water, magnesium ion, and along with the prolongation adsorbance of time constantly increases calcium in the water, the reduction of magnesium ion concentration can reduce calcium carbonate, the growing amount of magnesium carbonate precipitation, thus air-conditioning equipment reduced, the dirty phenomenon of the length of pipeline.
Table 2
Test number Time (my god) concentration (ppm) 0 7 16 33 57 101
1 Ca 2+Mg 2+ 20.0 2.35 20.0 2.35 20.2 2.36 20.7 2.38 19.0 2.35 20.5 2.35
2 Ca 2+Mg 2+ 20.0 2.35 12.0 1.88 11.0 1.86 9.25 1.80 7.50 1.70 7.75 1.60
3 Ca 2+Mg 2+ 20.0 2.35 13.0 2.33 12.8 2.30 12.7 2.10 12.5 2.10 12.0 1.75
4 Ca 2+Mg 2+ 20.0 2.35 11.0 1.63 10.3 1.6 8 9.25 1.60 7.25 1.43 8.00 0.875
In addition, because function carbon fiber itself does not contain class nutriments such as the required N of growth of microorganism, P, add the reduction of oxygen in water concentration, make microorganism lose the environmental condition of its procreation growth, therefore, the adding of function carbon fiber has suppressed the procreation growth of microorganism, the biological clay of having avoided Institute of Micro-biology to produce.
More than the used ZS-1 type function carbon fiber of experiment is that Guangdong Chinese brightness functional fibre industrial corporation produces.
The above-mentioned functions that the function carbon fiber is had can fundamentally be improved the water quality of recirculated cooling water, plays the effect of anticorrosion, antiscale, inhibition growth of microorganism, makes equipment and pipeline keep clean totally, guarantees the long-term normal operation of air-conditioning system.
The inventive method is simple, only needing that the function carbon fiber is handled material is fixed in the recirculated cooling water flow process, make the cooling water spontaneous current cross the processing material, the used device of the inventive method only constitutes by crossing filter core and shell, handling material was included in the filter core, this device is easy to be installed in the original system and existing equipment be need not to change, compare to chemical method, handle the air-conditioning system recirculated cooling water with method of the present invention and device, has the efficient height, use manpower and material resources sparingly, can not bring new advantages such as water pollution, not only prolong service life of equipment and turn(a)round, and save maintenance cost.
Following result has embodiment and accompanying drawing thereof, and the present invention is further illustrated.
Fig. 2 is the filter core structure schematic diagram, and wherein Fig. 2 a was the front elevation of filter core, and Fig. 2 b is the C-C profile of Fig. 2 a.
Fig. 3 is the schematic diagram for the treatment of apparatus in the open type cooling tower;
Fig. 4 is the A-A profile of Fig. 3;
Fig. 5 is the schematic diagram for the treatment of apparatus in the chilled water circulatory system;
Fig. 6 is the B-B section enlarged diagram of Fig. 5.
Recirculated cooling water treating apparatus in the open type cooling tower as shown in Figure 3 and Figure 4, there is a water inlet pipe (7) in cooling tower central authorities, treating apparatus is placed on Lower Half in the cooling tower, split the both sides of water inlet pipe (7) and be fixed on the shelf (6), treating apparatus is by crossing filter core (1), shell (2) constitutes, shell is the dish of two approximate half-circular made from PVC plastics or fiberglass, the semicircle edge of dish is upwards outward-dipping, so that cooling water flow as much as possible is through device, Pan Kou is water inlet (4), be delivery port (5) at the bottom of the mesh-covered tray, above the filter core filter (3) arranged excessively.Recirculated water flows into Pan Kou (water inlet) after cooling off in cooling tower, the filter of flowing through earlier, passed through filter core again, flows through then (delivery port) at the bottom of the mesh-covered tray, discharges cooling tower at last, circulates next time.
Cross filter core (1) and be approximate cuboid (shown in Fig. 2 A), make according to the following steps:
1. be seamed into the small rectangle bag with the terylene net, interior dress seals after handling material, becomes the small offence filter core; Used processing material is the ZS-1 type function carbon fiber that Guangdong Chinese brightness functional fibre industrial corporation produces;
2. be seamed into big rectangle bag with the terylene net,, big rectangle bag be separated into several small rectangle bags, become core retainer plate (2B) again along short-axis direction stitching separated by a distance;
3. the small offence filter core is packed in each small rectangle bag in the core retainer plate, approximate cuboid cross filter core.
Treating apparatus in the chilled water circulatory system as shown in Figure 5 and Figure 6, device is installed on the former water inlet of the circulatory system (9), and recirculated water flows into the filter of flowing through (3) by the water inlet (4) of device, by crossing filter core (1), flowing out, enter the circulatory system again from delivery port (5).Cross filter core (1) and be approximate circle cylinder shape, cross filter core (Fig. 2 A) by approximate cuboid and be rolled into (Fig. 6) along long limit, shell (2) is made by metal or plastics, and the middle part is cylindric, and both sides are coniform, and two ends are made water inlet (4) and delivery port (5) respectively.The middle part all uses ring flange (8) to connect with both sides, so that installation and removal.

Claims (8)

1, a kind of air-conditioning system recirculated cooling water processing method, it is characterized in that the processing material is fixed in the cooling water flow path, allow cooling water naturally by handling material, used processing material is the function carbon fiber, this function carbon fiber is is skeleton with the carbon element, contain ion-exchange group, redox group and absorption surface have ion-exchange, absorption, the fibrous functional material of redox property, this function carbon fiber are the ZS-1 type function carbon fiber that Guangdong Chinese brightness functional fibre industrial corporation produces.
2, method according to claim 1, it is characterized in that said processing material usage A is: for the open type cooling tower, when quantity of circulating water is T (ton/hour), A (kilogram)=(0.04~0.07) T+0.5, for the chilled water circulatory system, when the chilled water total amount is T (ton), A (kilogram)=(1/3~1/2) T.
3, the isolated plant of the described method of a kind of claim 1, it is characterized in that this device constitutes by crossing filter core (1) and shell (2), crossing filter core comprises core retainer plate (2B) and handles material (2A), wherein core retainer plate is that the material of porous is made, the processing material (2A) of dress be the ZS-1 type function carbon fiber of Guangdong Chinese brightness functional fibre industrial corporation production in the core retainer plate, and shell comprises housing and water inlet (4), delivery port (5).
4, device according to claim 3 is characterized in that the said filter core (1) of crossing is approximate cuboid, and shell (2) is the dish of two approximate half-circular making with PVC plastics or fiberglass, and Pan Kou is water inlet (4), is delivery port (5) at the bottom of the mesh-covered tray.
5, device according to claim 3 is characterized in that the said filter core (1) of crossing is approximate circle cylinder shape, and the middle part of shell (2) is cylindric, and both sides are coniform, and two ends are respectively water inlet (4) and delivery port (5).
6, device according to claim 3 is characterized in that said water inlet (4) and crosses between the filter core (1) that a filter (3) is arranged.
7, device according to claim 3 is characterized in that said core retainer plate (2B) made by the terylene net.
8, device according to claim 3 is characterized in that said core retainer plate (2B) can be separated into several portions, handles material (2A) and is uniformly distributed in the each several part.
CN93108366A 1993-07-17 1993-07-17 Method and apparatus for treatment of circulating cooling water in air-conditioning system Expired - Fee Related CN1045725C (en)

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Application Number Priority Date Filing Date Title
CN93108366A CN1045725C (en) 1993-07-17 1993-07-17 Method and apparatus for treatment of circulating cooling water in air-conditioning system

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CN1045725C true CN1045725C (en) 1999-10-20

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324535A (en) * 1997-04-25 1998-10-28 Adam Isherwood A composition and method for reducing noise in a liquid-cooling system
CN106595347B (en) * 2016-12-16 2019-03-22 西安优耐特容器制造有限公司 A kind of coaxial sleeve heat exchanger with pre-filtering device
CN108726716A (en) * 2018-08-13 2018-11-02 天津开发区天盈企业有限公司 A kind of Air-conditioning Cycle water treatment facilities

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1043161A (en) * 1988-12-05 1990-06-20 中山大学 Reclaim, extract gold from activated carbon fiber
CN2155932Y (en) * 1993-04-03 1994-02-16 刘忠达 Health care water purifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1043161A (en) * 1988-12-05 1990-06-20 中山大学 Reclaim, extract gold from activated carbon fiber
CN2155932Y (en) * 1993-04-03 1994-02-16 刘忠达 Health care water purifier

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